diff options
| author | Joel Kitching <kitching@google.com> | 2018-10-02 20:54:07 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-11-19 16:28:25 -0800 |
| commit | 0f7779862ca4b4973f52c7b851c65ccb8d9cd147 (patch) | |
| tree | 36e2c16888c1f4c8f50c95c0a5dce732390879b1 /utility | |
| parent | 9071205452595027cc8d52588f0c6fdf7581f905 (diff) | |
| download | vboot-0f7779862ca4b4973f52c7b851c65ccb8d9cd147.tar.gz | |
CHERRY-PICK: vboot: create NVRAM flag to pause after EC software sync
Previously, it is impossible to programmatically enable/disable
Alt OS mode in eve. This is because only EC-RW supports the
kbatboot keyboard matrix functionality. But, as part of the
campfire boot flow, the keyboard matrix is retrieved *immediately*
after jumping into EC-RW. We need to insert a small pause in
order to allow for some entity (autotest/servo) to send a kbatboot
command, simulating the Alt OS keyboard press hotkey.
BUG=b:117140648,b:118786884
TEST=Manually use crossystem to set post_ec_sync_delay=1
Reboot, and wait for the delay to begin
Run `kbatboot 1 4 1` in EC console
Check that AP console contains:
"vb2_post_ec_sync_hooks: post_ec_sync_delay 5000 ms..."
TEST=make clean && make runtests
Note that we are only cherry-picking the changes which affect
crossystem in this CL. Firmware changes will still live in
campfire-eve branch only.
Change-Id: I1305357199d87b80b4edc4e311015106ab07de65
Reviewed-on: https://chromium-review.googlesource.com/c/1256644
Commit-Queue: Joel Kitching <kitching@chromium.org>
Tested-by: Joel Kitching <kitching@chromium.org>
Trybot-Ready: Joel Kitching <kitching@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
(cherry picked from commit 64d7369976b88b21d8d8a860252023776a2f119e)
Reviewed-on: https://chromium-review.googlesource.com/1328389
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'utility')
| -rw-r--r-- | utility/crossystem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/utility/crossystem.c b/utility/crossystem.c index 4ab5d7f3..d7443487 100644 --- a/utility/crossystem.c +++ b/utility/crossystem.c @@ -55,6 +55,8 @@ const Param sys_param_list[] = { {"disable_dev_request", CAN_WRITE, "Disable virtual dev-mode on next boot"}, {"ecfw_act", IS_STRING, "Active EC firmware"}, {"enable_alt_os_request", CAN_WRITE, "Enable AltOS mode on next boot"}, + {"post_ec_sync_delay", CAN_WRITE, + "Short delay after EC software sync (persistent, writable, eve only)"}, {"fmap_base", 0, "Main firmware flashmap physical address", "0x%08x"}, {"fw_prev_result", IS_STRING, "Firmware result of previous boot (vboot2)"}, {"fw_prev_tried", IS_STRING, "Firmware tried on previous boot (vboot2)"}, |